18 Best Coffee Shops in Sarnia

“Brownstones Community Spotlight: Global Donuts If you’re from Sarnia, you already know Global Donuts isn’t just a donut shop, it’s a local institution. Nestled on London Line, this place has earned its cult-classic status for good reason. From the first bite of one of their legendary Pączkis, to the unmistakable freshness of donuts made right on site, you’re tasting a level of craft that’s becoming rare. At the heart of it all is Gus, the kind of owner every community wishes they had. He’s a quiet force of consistency, generosity, and pride proving that when passion meets purpose, the results are unforgettable. We’ve also heard from countless locals about how well he treats his staff, and my own daughter is part of his team, and she’s proud to be there. That speaks volumes. Here’s to Global Donuts: a place that feels like home, delivers like a dream, and reminds us that real community is built one great donut at a time.“

“Always delicious bagels and soups! We love to come for their lunch specials :)“

“Brownstones Spotlight: Blackwater Coffee Tucked into the heart of downtown Sarnia is a place that doesn't just serve coffee it defines it. Blackwater Coffee isn’t simply a café; it’s a benchmark of style, quality, and entrepreneurial spirit. Long before downtown’s resurgence, Dave the visionary behind Blackwater committed to something greater than just brewing beans. He built an atmosphere. A vibe. A standard. With a relentless work ethic and an eye for design, Dave created a space that feels as good as the coffee tastes. Every cup at Blackwater tells a story of craftsmanship, consistency, and community. And if you've ever been, you know the truth: once you've had Blackwater, you find yourself craving that next cup before you've even left the block. At Brownstones, we know what it takes to build something meaningful in this city. That’s why we’re proud to spotlight Blackwater Coffee a true local gem and a cornerstone of what makes Sarnia special. Here's to Dave, to his incredible team, and to many more years of caffeinated excellence.“

“This is probably one of the best kept secrets in our community. In this quiet location, is a place called Mine Fresh. Although it is small by fast food standards, it is a Gem! You see, it is both a convenience store, as well as a small but very tasty eat in or take out facility. Just ask Jay, the owner of Mine Fresh, and she will prepare your order fresh made while you wait.

Vegetarian options: Jay serves mostly items that contain beef chicken and more. But do not hesitate to ask her for many options she has available, vegans can enjoy her many friendly options for sure!

Dietary restrictions: Again please ask Jay for her suggestions regarding dietary restrictions. She will accomodate your requests with a number of healthy options for sure!“

“Excellent food. The menu covers everything from breakfast to dinner and dessert. A cozy restaurant with lots of seating and super friendly staff. Highly recommend!“

“The customer service here is incredible. The employees are very friendly and I feel welcomed here which can be hard for me. It has been really uplifting in what has been a very difficult time in my life. It is nice getting a little treat every now and then. The flavoured drinks are very good. I find the black coffee a little on the bitter side, but sometimes that is what I crave. The espresso seems to be particularly potent here, which I have learned is not a substitute for a proper sleep! The food is pretty great too, I struggle to eat breakfast sometimes but am fond of the selections here.“

“Great casual place to drop in for your fav beverage and a bite.“

“Easily one of the best customer service experiences I've ever had, hands down. All the staff are super friendly. They were super quick making my order and were more than happy to chat with me while they did so. Best location in Sarnia!“

“cheaper than Starf*cks !“

“All is good but plz check your high chair for kids at least twice a day
I know this weather is of insects not management’s fault
But plz check it because when I came their was something on that so I have to carry my baby in my lap
Thnkeww“

“constantly the best coffee in town, great staff and always quick. been going here for years. thanks for the morning coffee!“

“I’m in grade for Miss Martin is the best teacher love the school thanks to all the teachers that taught me and the vice principal and the principal are the bestThank you“

“I recently visited a Starbucks- London road location in Sarnia- and I just want to rave about my experience! this woman named *JC* sorry if I spelled it wrong, but she was such a treasure! she helped me pick out the best birthday drink, and was such a delight to converse with. she literally went above and beyond to help my sister and I. 10000 gold stars for her.“

“amazing staff, Ambience and great food options. I love to go at this place.“

“love this location the staff always thrive to provide 100% customer service. the employees are always sooo friendly and polite keep up with the great energy :)“

“We decided to stop in for lunch while running errabds and chose the new Thanksgiving turkey sandwhich. WOW Tims have got it right with this one as its delicious! Shout out to our sandwhich maker today as the first bun was overcooked and she aplogised and checked to see if that was ok and happily remade it no problem at all.“

“Good service friendly service good food“

“Visited this Tim’s for breakfast and found the donuts fresh and the coffee well made. Drive-thru moved efficiently waited only a few minutes and the staff handled orders politely under pressure. The front-of-house and tables were generally clean; fascinating about this particular store is the staff addresses the customer with a smile even in there rush hours. Overall a good spot for a quick grab-and-go or a casual stop or to hangout with friends“